Add the money coming in, the bills going out, what you want to save, and the debt you are repaying. Use this page for a quick draft, then create, save, and track your budget for free in Fleur.
Income
List each paycheck or other income source for the month.
SourceAmount
Expenses
Add the costs you expect to pay this month.
CategoryAmount
Savings
Emergency fund, sinking funds, investing, or any money you want to set aside.
GoalAmount
Debt Repayments
Track minimum payments or extra payoff amounts separately from regular expenses.
DebtAmount
Budget result
Start with “Money left after plan.” If it is positive, that money still needs a job or can become a buffer. If it is negative, the plan costs more than your income.
Total income$0.00
Total expenses$0.00
Total savings$0.00
Total debt repayments$0.00
Total planned outflow$0.00
Money left after plan$0.00
Total planned outflow is everything leaving your available income: expenses + savings + debt payments. Savings is included because the money is being assigned even though you are keeping it.
Needs Review
Start filling in your numbers.
Your budget status will appear here once you add income and at least one planned item.
Saved or sent to debt0%
Spent on expenses0%
These percentages describe the plan: “Spent on expenses” is the share used for monthly costs. “Saved or sent to debt” is the share building savings or reducing debt. There is no required percentage; use them to check whether the balance matches your priorities.
How this budget calculator works
The calculator keeps the math simple and visible. Enter the money you expect to receive, then subtract the money you already plan to spend, save, or send toward debt.
Budget formula
The remaining amount is what has not been assigned yet.
Income - expenses - savings - debt = remaining money
If this is your first budget
Use estimates first. A useful first budget is allowed to be imperfect. Fleur lets you create and save the real budget for free, then adjust the categories as spending happens.
Example monthly budget
A useful budget does not need dozens of categories on day one. Start with a clear monthly estimate, then split categories further only when the extra detail changes a decision.
Line
Example amount
Monthly income
$4,000
Planned expenses
$2,650
Savings goals
$500
Debt payments
$550
Remaining money
$300
A simple first-budget checklist
Use last month as a starting point. If you do not know the exact number, make a reasonable estimate and come back later.
Add a small buffer. A first budget usually misses something. A miscellaneous or buffer line keeps one surprise from breaking the whole plan.
Separate savings from leftovers. If saving matters, put it in the budget before the month starts instead of hoping money remains at the end.
Review after real spending. The first version is a draft. After tracking expenses in Fleur for a week or two, adjust the categories that were too low or too vague.
What to enter first
Use category names you would still understand at the end of the month. The goal is not perfect bookkeeping; it is a plan you can actually review.
Income
Paychecks
Side income
Benefits or support
Irregular income
Monthly expenses
Housing, utilities, and phone
Groceries and household supplies
Transportation and insurance
Health, subscriptions, and personal spending
Savings goals
Emergency fund
Annual bills
Travel or gifts
Investing contributions
Debt payments
Credit cards
Student loans
Car loans
Extra principal payments
How to read your result
Over budget
Your planned expenses, savings, and debt payments are higher than income. Review flexible spending first, then decide whether a goal or extra debt payment needs to change.
Balanced
Your income is almost fully assigned. This is close to a zero-based budget: income has a job before the month starts.
Room left
You still have money available. Keep a small buffer if you need one, but assign larger leftovers to a real category.
Use either a category budget or 50/30/20
A category budget works well when you want detail: rent, groceries, subscriptions, emergency fund, and debt each get their own line. The 50/30/20 budget calculator works better as a quick check: needs, wants, and savings or debt.
This builder can handle both. Enter broad groups if you are starting quickly, or enter detailed categories if you already know where the money should go.
Budget builder FAQ
What is a budget builder?
A budget builder is a planning tool that organizes monthly income, expenses, savings, and debt payments so you can see whether your money plan works before the month begins.
Is this budget builder free?
Yes. Fleur's budget builder is free to use and does not require an account to calculate a monthly budget.
How does a monthly budget calculator work?
It adds your planned income and subtracts planned expenses, savings, and debt payments. The remaining amount shows whether you are over budget, balanced, or still have money left to assign.
What is a zero-based budget?
A zero-based budget gives every dollar a job. That job can be spending, saving, debt payoff, investing, or planned flexibility, but the goal is to avoid money sitting unassigned.
What should I do if I am over budget?
Start with flexible expenses like dining out, shopping, subscriptions, or personal spending. If the budget is still short, decide whether a savings goal or extra debt payment needs to be smaller this month.
What should I do after I make a budget?
Use this calculator for a quick draft, then use Fleur to create, save, and track your budget for free. The app helps you follow daily spending, savings goals, debt, and accounts in one place.
Create, save, and track your budget in Fleur
This page helps you sketch the numbers quickly. Fleur is where you can build the full budget, save it for the month, and track daily spending, savings goals, debt payments, and accounts for free.
